Factory & Warehouse Cooling

Commercial Warm Air Heating Services – Factory Heating Solutions (45,000 SQ FT)

February 2022


Fuel Type – Natural Gas



OKEL were approached by our client, Strongdor, who were wanting to replace the existing heating system within the main factory (45,000 sq. ft) with a more efficient and effective solution.

The existing heating system was struggling to provide sufficient heat, especially in the winter months, resulting in the cold temperatures having a negative impact on the performance of the machinery on site and steel components used throughout production of industrial steel doors.


OKEL Solution

Having considered all the information gathered during the site survey, OKEL proposed the introduction of a modern high efficiency warm air and destratification heating system to heat the Factory Floor.

OKEL’s design introduced 660 kw of heat, consisting of Winterwarm TR150 and XR+60 natural gas fired suspended warm air heaters designed specifically for heating large industrial space and with flues to exit horizontally out of the external walls to avoid any roof penetration.

Due to the height of the ceiling (19m to apex), it was essential to provide a heating solution that ensured the heat from the warm air heaters remained on the lower ground level where it was of most benefit to the work force and production processes. To reduce heat loss from above, OKEL’s chosen model of warm air heaters came with the added feature of integral destratification that works by forcing heat back down to the lower level, if the heaters gradient controls and temperature sensors identify that ceiling temperatures are becoming too hot.

In addition to the destratification feature of the warm air heaters, OKEL’s design included the introduction of Winterwarm WCU100 destratification fans evenly distributed at ceiling height to assist with an even spread of heat throughout the factory. The Carbon Trust estimates that the use of destratification fans in industrial buildings with high ceilings and operating a warm air heating system can reduce energy consumption by 20%.

As well as the heat benefits provided, OKEL system design included a summer ventilation mode to enable continuous air circulation when the outside temperatures started to soar in the summer months.

Within the main factory there was a large shutter entrance door that remained open for most of the working day and therefore to ensure OKEL’s overall system design provided our client with maximum efficiencies OKEL wanted to include a solution to combat heat loss through the shutter entrance.

Rather than fitting PVC strip curtains on the shutter entrance, of which can sometimes have a negative impact on visibility for site traffic, OKEL chose to install an industrial modular air curtain above the large roller shutter entrance. The purpose of an air curtain is to create a barrier between the warm air within a building and cold outside air and by doing so it contributes to a substantial reduction in gas consumption and in turn lowers energy bills and improves the Carbon Footprint of a business.